Accession Number:

AD0477149

Title:

A SIMPLIFIED STUDY OF THE TURBULENT FREE SHEAR LAYER BETWEEN TWO DISSIMILAR GASES

Descriptive Note:

Corporate Author:

AERONAUTICAL RESEARCH ASSOCIATES OF PRINCETON INC NJ

Report Date:

1965-07-01

Pagination or Media Count:

55.0

Abstract:

An analytical study of the turbulent mixing of two dissimilar gases in a free shear layer was performed. A simplified method was designed by which closed form expressions could be obtained for the characteristics of such a flow. These included the boundaries of the mixing region, the location of the dividing streamline, the local flow velocities, the local thermodynamic conditions, and the mean rate of energy transport across the shear layer. Although the effects of compressibility and the presence of dissimilar gases on either side of the mixing region raise the level of complexity of the problem, the approach remains the same as that used to solve the single gas compressible problem. Therefore, in order to focus attention on this approach, the incompressible one-gas flow is treated first, then the modifications required to account for compressibility are shown and the results, which then become functions of Mach number and enthalpy, are given, and finally, the treatment and results for the mixing of two dissimilar gases are presented.

Subject Categories:

  • Antimissile Defense Systems
  • Guided Missiles
  • Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE